Scream! 4.6 released

November 2017

Güralp Systems are delighted to announce the release of version 4.6 of
Scream!, the leading software application for Seismometer Configuration,
REaltime Acquisition and Monitoring. The new version offers improved
spectrograms and WaveView windows, integration with Google Maps/Google Earth
and a host of other features.

Scream! 4.6 optionally includes version 3 of ART, Güralp Systems’ Analysis
and Research Tool, a Windows program for processing and analyzing strong motion
records from Güralp Systems’ instruments. ART works closely with Scream! to make
analysing seismic data easy. Scream!’s visualization and filtering capabilities
allow you to view time series and quickly identify events. Strong-motion records
can then be directly imported into ART by selecting the appropriate portion of
the record in Scream! and using the right-click context menu, which will
automatically start ART with the selected data pre-loaded. Previously recorded
data in Güralp Compressed Format (GCF) can also be read in from files and
analyzed with any of the rich selection of sophisticated processing techniques.
Click here for more details about ART 3.

In common with previous releases, Version 4.6 will be offered as a free
download. This release represents the culmination of nearly seven years of
development effort and incorporates support for newer GSL equipment as well as
valuable suggestions from our customers. Existing Scream! users will be notified
by email of the new release; new customers should send an email to This email address is being protected from spambots. You need JavaScript enabled to view it.
for instructions for accessing the free download,
stating any institutional affiliation and the type(s) of equipment with which
the software will be used.

Highlights

Introduction of support for Affinity and Minimus digitisers, with direct
access to their configuration web pages.

Automatic detection of nearby network servers and support for broadcast
addressing.

Seamless exchange of calibration values between connected copies of
Scream!.

Custom phrase highlighting in terminal windows and status streams.

A major re-organisation and re-write of
the manual, reflecting the way
that Scream! usage has changed with developing technology. Over two hundred
brand new screen-shots and illustrations provide clear guidance throughout.

A WaveView window with streams spaced by “distance from a set-point”

Detailed release notes

Main Window

Introduction of support for Affinity and Minimus data sources:

In instrument popup menu, suppress options that Affinity/Minimus do not
support - mainly around Forth terminal command compatibility
(config/control/terminal/etc).

Overhaul of mass position determination, to introduce Affinity and Minimus
types and ranges. This improves the status display of the sensor mass position icon.

Added AutoDeleteStale ini option. If greater than
zero, this specifies number of seconds of timeout for an Instrument, after
which the Instrument will be deleted. Useful in test labs, where instruments
are frequently changed.

WaveView

Added right-click
()
on Date to toggle between YYYY/MM/DD and
YYYY/JJJ date format.

Disable Latitude/Longitude auto-position updates if a manual override is
in use.

Added a UDP receive watchdog timeout, which defauls to 128 seconds. If no
UDP packets are received before the watchdog timer expires, the system will
reset all UDP receive threads. The timeout is defined by an optional
UDPWatchdogTimeout in the
[custom] section of the
scream.ini file. A negative value disables the watchdog.

Modified Unified Status reporting to include undefined bits.

Filter out Xon and Xoff characters from terminal log.

Added "validating files" progress in View mode, as it seems some
operations can be very slow over a network share.